Contact form problem

I followed this tutorial: http://www.kirupa.com/developer/actionscript/flash_php_email.htm
and ran into some problems.

On the “send” button I have this code:

form.loadVariables("email.php", "POST");

onClipEvent(data){

   _root.nextFrame();

}

But something is wrong. First of all, the button doesn’t work and when I test my movie… this output message comes:

Can you tell me what is wrong?

peace!